
NTE1792
Integrated Circuit
Dual Attenuator
Description:
The NTE1792 is a silicon monolithic integrated circuit in a 9–Lead SIP package designed for sound
control applications.
Features:
Two separate attenuators
The characteristic control curve is linear against logarithmic output.
Channel Separation: 64dB MIN
Typical Application: Sound MPX attenuator for TV, Radio and mobile receiver.
Absolute Maximum Ratings:
(T
A
= +25
°
C unless otherwise specified)
Supply Voltage, V
CC
Minimum
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Signal Input Voltage at Pin4 and Pin6, V
in
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Control Input Voltage at Pin2 and Pin8, V
cont
Minimum
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Dissipation (T
S
= +75
°
C), P
D
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Temperature Range, T
opr
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage Temperature Range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0V
15V
3V
p–p
0V
15V
350mW
–20
°
to +75
°
C
–40
°
to +125
°
C
Electrical Characteristics:
(V
CC
= 12V, T
A
= +25
°
C, f = 1kHz unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ Max Unit
Supply Voltage
V
CC
I
CC
A
V
S
ep
T.H.D.
8.0
12.0 14.4
V
Supply Current
No Signal
8.0
10.5 16.0
mA
Relative Output
V
cont
= 1V, V
in
= 500mV
rms
V
cont
=5V, V
in
= 500mV
rms
V
cont
= 5V, V
in
= 500mV
rms
H
um
f = 60Hz,
H
um
Level = 1V
p–p
–2
0
+2
dB
Channel Separation
64
70
–
dB
Total Harmonic Distortion
–
0.5
1.0
%
Power Source Noise Rejection
R.R.
30
–
–
dB